1. VS1A series of vacuum circuit breakers are the Second Generation indoor switch equipment, with the rated voltage 7.2kv, 12kv, 17.5kv and 24kv.2. VS1A series of vacuum circuit breakers adopt the integrated design of simple structure and convenient operation.3. It is equipped with a perfect mechanical and electrical interlock to enhance its anti-incorrect operation performance.4. Standards: IEC62271-100, IEC56, GB1984-2003, GB/T11022, DL/T403-2000, etc.

Please consult with manufacturer on manufacturing technology when operating environment is the climatic environment with high altitude, high humidity and great temperature change or other special environment condition.

External Dimension

VS1A-7.2,12-pole center distance 150mm

No.

Rated Voltage(kV)

Rated current(A)

Short-circuit breaking current(kA)

h1(mm)

h2(mm)

h(mm)

A(mm)

B(mm)

1

7.2,12

630-1250

20-31.5

260

205

622

438

609

2

7.2,12,17.5

630-1250

20-31.5

280

275

637

432

598

VS1A-7.2, 12, 17.5-pole center distance 210mm

No.

Rated Voltage(kV)

Rated current(A)

Short-circuit breaking current(kA)

h1(mm)

h2(mm)

h(mm)

A(mm)

B(mm)

1

7.2,12,17.5

630-1250

20-31.5

260

205

622

438

609

2

7.2,12,17.5

630-1600

20-31.5

280

275

637

432

598

3

7.2,12

1250-1600

40

295

310

697

432

598

4

7.2,12

2000

31.5-40

295

310

697

432

598

VS1A-7.2, 12, 17.5-pole center distance 275mm

No.

Rated Voltage(kV)

Rated current(A)

Short-circuit breaking current(kA)

h1(mm)

h2(mm)

h(mm)

A(mm)

B(mm)

1

7.2,12,17.5

630-1250

20-31.5

280

275

637

432

598

2

7.2,12

1250-1600

40

295

310

697

432

598

3

7.2,12

1600-2500

25-40

295

310

697

432

586

4

7.2,12

3150-4000

31.5-40

295

310

697

432

586

5

7.2,12

3150-4000

31.5-40

295

310

733

432

586

Packaging, transportation and storage precautions

(1) Circuit breaker should be in the state of opening and energy storage spring in a state without energy storage when packing. It should be in the state of opening and energy storage spring in a state without energy storage when packing. And it should be fixed on the bottom of the wooden case, should have waterproof measures and complete package labels.(2) Circuit breakers can't invert and avoid strong vibration, rain, surface damage, and components lost when transportation.(3) When loading the circuit breaker, we suggest the following tools: crane, forklift and driving. When lifting the circuit breaker, we should not hook on the body or pole of the circuit breaker, but on the lifting hole which has the lifting mark.(4) When circuit breaker has a long-term storage, it should be in a state of opening and energy storage spring in a state without energy storage and placed in dry ventilated indoor preventing from moisture, vibration control and harmful gas erosion, and regularly checked whether environment meets the requirements.(5)When first use products after long-term storage, it need to have a power frequency withstand voltage insulation testing.